Appear on new brick, plaster or cement as they dry.
Failure to adequately prepare surface by removing all previous efflorescence.
Solution:
The source of moisture must be repaired before any paint preparation. If excess moisture is the cause, eliminate the source, sealing any cracks in the masonry with sand and cement.
Color of the newly applied paint is much lighter than the original finish
Solution:
Before painting, check the back panels of cans for proper thinning ratio and thin the paint according to instructions. Make sure to stir paint well before application.
Use of a low quality paint that has inadequate adhesion and flexibility.
The applied paint is very thick.
Solution:
It is possible to correct cracking that does not go down to the substrate by removing the loose or flaking paint with a scraper or wire brush, sanding to feather edges, priming any bare spots and repainting.
Use of an interior paint for an outdoor application.
Solution:
First, remove as much of the chalk residue as possible, using a stiff bristle brush (or wire brush on masonry) and completely dust off and clean surface using dampened cloth.